Now the global burger brand is rolling out a print campaign featuring what we’re told are real X-rays of real customers who injured their jaws eating at Burger King. Each ad includes an associated tweet about the injury.

The agency behind the new work is David São Paulo, which recently created a way for Burger King’s app users in Brazil to “burn” competitors’ ads and reveal a coupon for a free Whopper.

The X-ray ads, which feature the tagline “We warned you it was big,” are light on copy but are generally intended to promote the Whopper and Mega Stacker burger lines.